4072578572173 has 2 divisors, whose sum is σ = 4072578572174. Its totient is φ = 4072578572172.

The previous prime is 4072578572149. The next prime is 4072578572177. The reversal of 4072578572173 is 3712758752704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3790333946884 + 282244625289 = 1946878^2 + 531267^2 .

It is a cyclic number.

It is not a de Polignac number, because 4072578572173 - 2²⁵ = 4072545017741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4072578572177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2036289286086 + 2036289286087.

It is an arithmetic number, because the mean of its divisors is an integer number (2036289286087).

Almost surely, 2^{4072578572173} is an apocalyptic number.

It is an amenable number.

4072578572173 is a deficient number, since it is larger than the sum of its proper divisors (1).

4072578572173 is an equidigital number, since it uses as much as digits as its factorization.

4072578572173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23049600, while the sum is 58.

The spelling of 4072578572173 in words is "four trillion, seventy-two billion, five hundred seventy-eight million, five hundred seventy-two thousand, one hundred seventy-three".